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These seven articles contain the answers to some Frequently Asked Questions often seen in comp.unix.questions and comp.unix.shell. Please don't ask these questions again, they've been answered plenty of times already - and please don't flame someone just because they may not have read this particular posting. Thank you. This collection of documents is Copyright (c) 1994, Ted Timar, except Part 6, which is Copyright (c) 1994, Pierre Lewis and Ted Timar. All rights reserved. Permission to distribute the collection is hereby granted providing that distribution is electronic, no money is involved, reasonable attempts are made to use the latest version and all credits and this copyright notice are maintained. Other requests for distribution will be considered. All reasonable requests will be granted. All information here has been contributed with good intentions, but none of it is guaranteed either by the contributors or myself to be accurate. The users of this information take all responsibility for any damage that may occur. Many FAQs, including this one, are available on the archive site rtfm.mit.edu in the directory pub/usenet/news.answers. The name under which a FAQ is archived appears in the "Archive-Name:" line at the top of the article. This FAQ is archived as "unix-faq/faq/part[1-7]". These articles are divided approximately as follows: 1.*) General questions. 2.*) Relatively basic questions, likely to be asked by beginners. 3.*) Intermediate questions. 4.*) Advanced questions, likely to be asked by people who thought they already knew all of the answers. 5.*) Questions pertaining to the various shells, and the differences. 6.*) An overview of Unix variants. 7.*) An comparison of configuration management systems (RCS, SCCS). This article includes answers to: 7.1) RCS vs SCCS: Introduction 7.2) RCS vs SCCS: How do the interfaces compare? 7.3) RCS vs SCCS: What's in a Revision File? 7.4) RCS vs SCCS: What are the keywords? 7.5) What's an RCS symbolic name? 7.6) RCS vs SCCS: How do they compare for performance? 7.7) RCS vs SCCS: Version Identification. 7.8) RCS vs SCCS: How do they handle problems? 7.9) RCS vs SCCS: How do they interact with make(1)? 7.10) RCS vs SCCS: Conversion 7.11) RCS vs SCCS: Support 7.12) RCS vs SCCS: Command Comparison 7.13) RCS vs SCCS: Acknowledgements 7.14) Can I get more information on configuration management systems? If you're looking for the answer to, say, question 7.5, and want to skip everything else, you can search ahead for the regular expression "^7.5)". While these are all legitimate questions, they seem to crop up in comp.unix.questions or comp.unix.shell on an annual basis, usually followed by plenty of replies (only some of which are correct) and then a period of griping about how the same questions keep coming up. You may also like to read the monthly article "Answers to Frequently Asked Questions" in the newsgroup "news.announce.newusers", which will tell you what "UNIX" stands for. With the variety of Unix systems in the world, it's hard to guarantee that these answers will work everywhere. Read your local manual pages before trying anything suggested here. If you have suggestions or corrections for any of these answers, please send them to to firstname.lastname@example.org.